Buffalo Trace, many moons ago, decided to get into sour mash whiskey production in a way that’s somewhat different then traditional sour mash expressions. It now has decided to go after a potential patent for its spin on this bourbon style, recently gaining patent pending and looking to expand production, partially in an old school way.

The distillery said it was recently awarded patent pending for its sour mash process which, while proprietary, “does differ from the standard sour mash process traditionally used in distilling in that this sour mash is naturally soured through the holding time instead of…